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server.go
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server.go
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// Copyright 2017 Istio Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package perf
import (
"fmt"
"os"
"path"
"time"
"istio.io/istio/mixer/pkg/adapter"
testEnv "istio.io/istio/mixer/pkg/server"
"istio.io/istio/mixer/pkg/template"
"istio.io/istio/pkg/log"
)
type server struct {
s *testEnv.Server
}
func (s *server) initialize(setup *Setup, settings *Settings) error {
args, err := initializeArgs(settings, setup)
if err != nil {
return err
}
server, err := testEnv.New(args)
if err != nil {
return err
}
s.s = server
s.s.Run()
return nil
}
func initializeArgs(settings *Settings, setup *Setup) (*testEnv.Args, error) {
serverDir, err := initializeServerDir(setup)
if err != nil {
return nil, err
}
templates := settings.Templates
adapters := settings.Adapters
if setup.Config.Templates != nil && len(setup.Config.Templates) > 0 {
templates = make(map[string]template.Info)
for _, name := range setup.Config.Templates {
t, found := settings.findTemplate(name)
if !found {
return nil, fmt.Errorf("template not found: %s", name)
}
templates[t.Name] = t
}
}
if setup.Config.Adapters != nil && len(setup.Config.Adapters) > 0 {
adapters = make([]adapter.InfoFn, len(setup.Config.Adapters))
for i, name := range setup.Config.Adapters {
a, found := settings.findAdapter(name)
if !found {
return nil, fmt.Errorf("adapter not found: %s", name)
}
adapters[i] = a
}
}
var args = testEnv.DefaultArgs()
args.APIPort = 0
args.MonitoringPort = 0
args.Templates = templates
args.Adapters = adapters
args.ConfigStoreURL = `fs://` + serverDir
args.ConfigDefaultNamespace = "istio-system"
args.ConfigIdentityAttribute = setup.Config.IdentityAttribute
args.ConfigIdentityAttributeDomain = setup.Config.IdentityAttributeDomain
args.SingleThreaded = setup.Config.SingleThreaded
if setup.Config.EnableDebugLog {
// Override enableLog. This should skip the next if conditional
setup.Config.EnableLog = true
o := log.DefaultOptions()
o.SetOutputLevel(log.DefaultScopeName, log.DebugLevel)
args.LoggingOptions = o
}
if !setup.Config.EnableLog {
o := log.DefaultOptions()
o.SetOutputLevel(log.DefaultScopeName, log.NoneLevel)
args.LoggingOptions = o
}
args.LoggingOptions.LogGrpc = false // prevent race in grpclog.SetLogger
return args, nil
}
func (s *server) shutdown() {
if s.s != nil {
if err := s.s.Close(); err != nil {
log.Error(err.Error())
_ = log.Sync()
}
s.s = nil
}
}
func (s *server) address() string {
return s.s.Addr().String()
}
func initializeServerDir(setup *Setup) (string, error) {
t0 := time.Now()
discriminator := fmt.Sprintf("%d-%d-%d-%d-%d-%d-%d",
t0.Year(), t0.Month(), t0.Day(), t0.Hour(), t0.Minute(), t0.Second(), t0.Nanosecond())
dir := path.Join(os.TempDir(), discriminator)
if err := os.MkdirAll(dir, os.ModePerm); err != nil {
return "", err
}
if err := write(path.Join(dir, "srvc.yaml"), []byte(setup.Config.Service)); err != nil {
return "", err
}
if err := write(path.Join(dir, "global.yaml"), []byte(setup.Config.Global)); err != nil {
return "", err
}
return dir, nil
}
func write(file string, bytes []byte) error {
var f *os.File
var err error
if f, err = os.Create(file); err != nil {
return err
}
if _, err = f.Write(bytes); err != nil {
_ = f.Close()
return err
}
return f.Close()
}